Skip to main content
U.S. flag

An official website of the United States government

Here’s how you know

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

HTTPS

Secure .gov websites use HTTPS
A lock (LockA locked padlock) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Emergency

This is not the current EPA website. To navigate to the current EPA website, please go to www.epa.gov. This website is historical material reflecting the EPA website as it existed on January 19, 2025. This website is no longer updated and links to external websites and some internal pages may not work. More information »

    • Environmental Topics
    • Air
    • Bed Bugs
    • Cancer
    • Chemicals, Toxics, and Pesticide
    • Climate Change
    • Emergency Response
    • Environmental Information by Location
    • Environmental Justice
    • Greener Living
    • Health
    • Land, Waste, and Cleanup
    • Lead
    • Mold
    • Radon
    • Research
    • Science Topics
    • Water Topics
    • A-Z Topic Index
    • Laws & Regulations
    • By Business Sector
    • By Topic
    • Compliance
    • Enforcement
    • Laws and Executive Orders
    • Regulations
    • Report a Violation
    • Environmental Violations
    • Fraud, Waste or Abuse
    • About EPA
    • Our Mission and What We Do
    • Headquarters Offices
    • Regional Offices
    • Labs and Research Centers
    • Planning, Budget, and Results
    • Organization Chart
    • EPA History
    • Staff Directory

Breadcrumb

  1. Home
  2. Hydrologic Modelling Community of Practice

Food Chain Models to Assess Exposures

The EPA Center for Exposure Assessment Modeling (CEAM) distributes simulation models and database software designed to determine exposure levels and effects of environmental contaminants on organisms which make up the food chain.

Available Products

The following food chain models were developed by the U.S. Environmental Protection Agency in conjunction with other government, academic, and commercial institutions. To find out more about a particular model, click on a hyper-linked model name in the table below. The models listed are available for download and are subject to the CEAM distribution and support policy.

Product Name Operating System Key Words Supported by CEAM?
ACE Win 9x, NT, 2000, XP acute, chronic, toxicity, concentration, exposure No. Please visit 
EPA Center for Public Health and Environmental Assessment (CPHEA)
AQUATOX Win XP, Vista, 7 aquatox, simulation model, fate prediction, aquatic systems, effect on ecosystem, ecological risk assessments, aquatic ecosystem Yes
BASS Win 98, NT, 2000, XP BASS, fish, bioaccumulation, population dynamics, biomass dynamics, rivers, lakes, reservoirs, assessment, fishery, management, regulatory No
FGETS Win 9x, NT aquatic biology, assessment, chemistry, environmental effects, metals, monitoring, NPS related, point source(s), test/analysis, toxicity No
SERAFM MS-Excel 2003 serafm, exposure, assessment, mercury, hg, surface water, pond, stream, river Yes
Web-ICE Javascript enabled browser toxicity, acute, aquatic, terrestrial, species, exposure No. Please visit 
EPA Center for Public Health and Environmental Assessment (CPHEA)
WHATIF Win XP(SP2) watershed, health, fish, habitat, macro-invertebrate, biodiversity, BASS, biomass, biota, aquatic ecosystem, MAHA, CVI, hydraulic, bankfull, flow, restoration, food web, mercury, PCB, dioxin No

Hydrologic Modelling Community of Practice

  • Modeling Products
  • Groundwater Models
  • Surface Water Models
  • Food Chain Models
  • Multimedia Models
  • Data Provisioning and Modeling Tools
  • Information Sources
    • -About CEAM
    • -CEAM Discussion
    • -Frequent Questions
    • -Related Links
    • -Distribution and Support Policy
Contact Us about Environmental Modeling Community of Practice
Contact Us about Environmental Modeling Community of Practice to ask a question, provide feedback, or report a problem.
Last updated on February 23, 2024
  • Assistance
  • Ayuda
  • Arabic
  • Chinese (simplified)
  • Chinese (traditional)
  • Aide
  • Asistans
  • Korean
  • Assistência
  • Russian
  • Tulong
  • Vietnamese
United States Environmental Protection Agency

Discover.

  • Accessibility Statement
  • Budget & Performance
  • Contracting
  • EPA www Web Snapshot
  • Grants
  • No FEAR Act Data
  • Plain Writing
  • Privacy
  • Privacy and Security Notice

Connect.

  • Data
  • Inspector General
  • Jobs
  • Newsroom
  • Regulations.gov
  • Subscribe
  • USA.gov
  • White House

Ask.

  • Contact EPA
  • EPA Disclaimers
  • Hotlines
  • FOIA Requests
  • Frequent Questions

Follow.